For the Inventor, By the Inventor

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Dallas, TX, United States of America

Elk Corporation of Dallas

USPTO Granted Patents = 18

Trademarks = 5

Forward Citations = 1,052

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18 inventors (with patents filed for the assignee):

Matti Kiik (9 out of 53 patents)

Casimir Paul Weaver (5 out of 11 patents)

Younger Ahluwalia (4 out of 22 patents)

4. Michael Lee Bryson (4 out of 20 patents)

5. Willard Calvin Hudson, Jr (3 out of 4 patents)

6. Darrell Heine (3 out of 3 patents)

7. William J Schultz (3 out of 11 patents)

8. Larry Scott Reed (2 out of 5 patents)

9. John G Freshwater (2 out of 6 patents)

10. Robert Joseph Tobin (2 out of 3 patents)

11. Frank Clydean Richey (2 out of 3 patents)

12. Clark Daniel Maytubby (2 out of 3 patents)

13. Alfred B Malmquist (2 out of 3 patents)

14. Patrick T Stapleton (2 out of 3 patents)

15. Michael Allen McLintock (1 out of 3 patents)

18 patents: Sort by Forward Citations

1. 7981819 - Fire resistant mattress fabric material and mattress (2011-07-19),

2. 6586353 - Roofing underlayment (2003-07-01),

3. 6500560 - Asphalt coated structural article (2002-12-31),

4. 6418692 - Aesthetic, self-aligning shingle for hip, ridge, or rake portion of a roof (2002-07-16),

5. 6341462 - Roofing material (2002-01-29),

6. 6316085 - Structural mat matrix (2001-11-13),

7. 6289648 - Laminated roofing shingle (2001-09-18),

8. 6199338 - Universal starter shingle (2001-03-13),

9. 6146705 - Structural mat matrix (2000-11-14),

10. 5965638 - Structural mat matrix (1999-10-12),

11. 5965257 - Coated structural articles (1999-10-12),

12. 5666776 - Laminated roofing shingle (1997-09-16),

13. 5611186 - Laminated roofing shingle (1997-03-18),

14. D369421 - Random cut laminated shingle (1996-04-30),

15. 5369929 - Laminated roofing shingle (1994-12-06),

Elk Corporation is a leading manufacturer of roofing materials based in Dallas. With over 50 years of experience, Elk Corporation offers a wide range of high-quality roofing products to meet the needs of residential and commercial customers. Their commitment to innovation and sustainability sets them apart in the industry.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

18 Patents

#110 in Dallas, TX

#1,076 in Texas

#17,382 in US

#33,147 in the World

Dallas, TX, United States of America

Elk Corporation of Dallas

Forward Citations = 1,052

18 inventors:

Matti Kiik (9 out of 53 patents)

Casimir Paul Weaver (5 out of 11 patents)

Younger Ahluwalia (4 out of 22 patents)

4. Michael Lee Bryson (4 out of 20 patents)

5. Willard Calvin Hudson, Jr (3 out of 4 patents)

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